Been meaning to post this here for you guys to check out. It's super simple graphics but not a simple game at all. Pure survival from some interesting dudes in Finland. UnReal World. I've chatted with one of the devs on his blog (Erkka) and he's good people. Played the game a bit and will go back at some point when I'm done with current games etc.. They've done a good job on this game and it deserves a look at least. Just gotta wrap your brain around the GUI and key bindings hehe. Can check it out for free...
Also just came across this other survival game on steam greenlight. On My Own. It's much more casual but seems interesting...